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/******************************************************************************
*
* Copyright 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
#pragma once
#include <array>
#include <cstring>
#include <initializer_list>
#include <optional>
#include <string>
#include "packet/custom_field_fixed_size_interface.h"
#include "storage/serializable.h"
namespace bluetooth {
namespace hci {
class Address final : public packet::CustomFieldFixedSizeInterface<Address>, public storage::Serializable<Address> {
public:
static constexpr size_t kLength = 6;
std::array<uint8_t, kLength> address = {};
Address() = default;
Address(const uint8_t (&addr)[kLength]);
Address(std::initializer_list<uint8_t> l);
// CustomFieldFixedSizeInterface methods
inline uint8_t* data() override {
return address.data();
}
inline const uint8_t* data() const override {
return address.data();
}
// storage::Serializable methods
std::string ToString() const override;
static std::optional<Address> FromString(const std::string& from);
std::string ToLegacyConfigString() const override;
static std::optional<Address> FromLegacyConfigString(const std::string& str);
bool operator<(const Address& rhs) const {
return address < rhs.address;
}
bool operator==(const Address& rhs) const {
return address == rhs.address;
}
bool operator>(const Address& rhs) const {
return (rhs < *this);
}
bool operator<=(const Address& rhs) const {
return !(*this > rhs);
}
bool operator>=(const Address& rhs) const {
return !(*this < rhs);
}
bool operator!=(const Address& rhs) const {
return !(*this == rhs);
}
bool IsEmpty() const {
return *this == kEmpty;
}
// Converts |string| to Address and places it in |to|. If |from| does
// not represent a Bluetooth address, |to| is not modified and this function
// returns false. Otherwise, it returns true.
static bool FromString(const std::string& from, Address& to);
// Copies |from| raw Bluetooth address octets to the local object.
// Returns the number of copied octets - should be always Address::kLength
size_t FromOctets(const uint8_t* from);
static bool IsValidAddress(const std::string& address);
static const Address kEmpty; // 00:00:00:00:00:00
static const Address kAny; // FF:FF:FF:FF:FF:FF
};
inline std::ostream& operator<<(std::ostream& os, const Address& a) {
os << a.ToString();
return os;
}
} // namespace hci
} // namespace bluetooth
namespace std {
template <>
struct hash<bluetooth::hci::Address> {
std::size_t operator()(const bluetooth::hci::Address& val) const {
static_assert(sizeof(uint64_t) >= bluetooth::hci::Address::kLength);
uint64_t int_addr = 0;
memcpy(reinterpret_cast<uint8_t*>(&int_addr), val.data(), bluetooth::hci::Address::kLength);
return std::hash<uint64_t>{}(int_addr);
}
};
} // namespace std
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